Section
1
2445/2465 Option 10 Operators
SPECIFICATION
INTRODUCTION
Option 10
to
the TEKTRONIX 2445 and 2465 Oscillo-
scopes adds the hardware and the software that allows
these instruments
to
be remotely'controlled and queried us-
ing a standard interface system.
'the
interface implemented
conforms
to
the specifications contained in IEEE Standard
Digital Interface for Programmable instrumentation
(ANSI/IEEE Std 488-1978). commonly referred
to
as the
General Purpose Interface Bus (GPIB). It also complies with
a Tektronix Standard relating
to
GPIB Codes. Formats,
Conventions and Features.
This manual describes GPIB operational elements only in
relation
to
communication between
the
oscilloscope and the
remote controller
by
way
of
the bus. For complete informa-
tion regarding GPIB electrical, mechanical, and functional
aspects, refer
to
ANSI/IEEE
Std
488-1978, which is pub-
lished by:
The Institute of Electrical and Electronics Engineers, Inc.
345 East 47th Street .
New York, New York 10017
Messages originating from a remote controlling device
and transmitted over the GPIf3 perform one
of
three
functions:
1. Set the oscilloscope operating mode;
2. Query the
state
of
the oscilloscope;
or
3. Query the results
of
measurements made.
All oscilloscope front-panel functions are controllable
through the GPIB interface, except the power and display
controls (INTENSITY, BEAM FINO, FOCUS, READOUT IN-
TENSITY, TRACE ROTATION,
A~TIG,
SCALE ILLUM, and
POWER). Structure and format
of
the commands and que-
ries executable by the GPIB Option are explained in Section
4, 'Controlling Oscilloscope Functions over the GPIB". A
listing
of
command headers and arguments, along with con-
cise descriptions, is also provided in Section 4.
REV APR 1985
The alphanumeric
crt
readout
is
used
to
display mea-
surement results,
diagnostknest
messages, exercise mes-
sages, and calibration messages.
Any
measurement result
that
is displayed on the
crt
readout can also be transmitted
over the GPIB. While the READOUT INTENSITY control it-
self is not GPIB controllable, scale-factor readouts can be
turned on and
off
over the bus.
STANDARD ACCESSORIES
In addition
to
the standard accessories listed in
the
basic
oscillOSCOpe
manuals, one copy each
of
the following
Option 10 accessories is also provided:
Description
2445/2465 Option 10 Operators Manual
2445/2465 Option 10 Service Manual
2445/2465 Option 10 Reference Guide
Part
Number
070-4633-00
070-4640-00
070-5364-00
STANDARD FUNCTIONS, FORMATS,
AND FEATURES
Thetotal interface-function repertOire
of
an instrumenton
the GPIB, in terms
of
interface-function subsets, is identified
in ANSI/IEEE
Std
488-1978. The status
of
subsets appli-
cable
to
2445 and 2465 Oscilloscopes with Option 10 are
listed in Table 1-1.
A Tektronix standard identifies the format and features
of
messages sent over the bus
to
communicate with other
instruments equipped with a GPIB interface. Specific fea-
tures implemented in the 2445 and 2465 Oscilloscopes are
listed in Table 1-2, and specific formats are shown in Table
1-3.
1-'
